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Parent heredity breeding method for Chinese mitten-handed crabs

A Chinese mitten crab and parent technology is applied in the genetic selection and breeding of Chinese mitten crab parent crabs in the origin of the Yangtze River, and the field of genetic breeding of parent crabs, which can solve the problem of destroying Chinese mitten crab germplasm resources and river crab germplasm resources. Mixing, poor quality of crab seedlings, etc., to achieve efficient and sustainable production, reduce the probability of disease occurrence, and achieve the effects of excellent parental lines

Inactive Publication Date: 2020-03-31
山东恒兴农牧科技有限公司
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Problems solved by technology

[0003] However, in the process of development, there are many unfavorable factors restricting the further development of the river crab industry that need to be resolved urgently: First, the parents or seedlings of river crabs come from the Liaohe River system and the Yangtze River system, which leads to the mixing of river crab germplasm resources and seriously damages the origin of the Yangtze River system. Eriocheir sinensis germplasm resources; at the same time, the parents of river crabs in many nursery farms are inbreeding. The phenomenon of multi-generation mixed breeding and inbreeding has caused serious degradation of germplasm resources, resulting in poor quality of crab seedlings, small breeding specifications, low survival rate, and precocious puberty , quality decline, low economic benefit

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  • Parent heredity breeding method for Chinese mitten-handed crabs

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Embodiment 1

[0039] This embodiment provides a method for genetic selection of Chinese mitten crab parents, which includes the following steps in turn: 1. species selection, 2. young crab cultivation, 3. first-year-old crab species cultivation, 4. pond growth into adult crabs and 5. genetic selection again Parents become crabs.

[0040] As a preferred technical solution of the present embodiment, further: step 1. selects the wild Chinese mitten crab of the origin of the Yangtze River Basin, and the standards for parent selection are as follows:

[0041] Appearance standard: 1. Appearance: the back is blue, the abdomen is off-white, with golden claws; the back is covered with a hard carapace, and the abdomen has 7 segments, which bend forward and stick to the ventral surface of the head and chest; the female adult crab has a round abdomen (group umbilicus), the abdomen of male adult crabs is a long and narrow triangle (pointy umbilicus), and the appendages on the chest include 1 pair of lar...

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Abstract

The invention discloses a parent heredity breeding method for Chinese mitten-handed crabs. The method comprises the following steps in sequence: seed selection, seed crab culture, culture of first-instar crab seeds, adult crab breeding in ponds and secondary heredity breeding of parent adult crabs. The parent heredity breeding method for the Chinese mitten-handed crabs, which is designed by the invention, is capable of (1) protecting parent crab genetic resources of Chinese mitten-handed crabs in the origin country of the Changjiang River, and (2) ensuring high quality, high efficiency and producibility of parent breeding of the Chinese mitten-handed crabs.

Description

technical field [0001] The invention relates to a method for genetic selection of parent crabs, in particular to a method for genetic selection of parent crabs of Chinese mitten crabs from the Yangtze River origin, and belongs to the technical field of aquaculture. Background technique [0002] River crab is the best among special aquatic products. It not only has high nutritional value and delicious taste, but also has a large demand in domestic and foreign markets. It also has a short breeding cycle, fast growth and high efficiency. Therefore, the area of ​​domestic breeding areas is increasing year by year. my country is the origin of Chinese mitten crabs in the Yangtze River, and its aquaculture output and commodity quality have always enjoyed a high reputation. Especially with the unique waters and climate advantages of the Yangtze River system, it has formed an international brand of Chinese mitten crabs in the origin of the Yangtze River, which has driven the cultivati...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/59
CPCA01K61/59Y02A40/81
Inventor 张佳程刘兴旺张海涛梁超苗又青谢田汉
Owner 山东恒兴农牧科技有限公司
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